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Object Record

Catalog Number 89.0001.323
Object Name Clamp, Pinch
Title Arthur H. Thomas Company Pinch Clamp, No. 75
Description Black metal. Handles have spring between them to automatically close clamp. Adjusting screw in handle. Large u-shaped clamp prongs.
Date 1940-1960s
Accession number 89.0001.323
Caption Arthur H. Thomas Co. Pinch Clamp, No. 75
Catalog date 2002-07-30
Catalog type History
Provenance Patented March 26, 1946, as a "Connector for Chemical & Laboratory Tubing", by Leopold J. Schmid, Philadelphia, PA. Patent was assigned to the Arthur H. Thomas Co. Application for the patent was made originally October 13, 1942.

From the "Scientific Apparatus and Reagents, Catalog 61," Arthur H. Thomas Co., 1961, page 253: "For use on either ball-and-socket or Corning O-Ring glass joints. Of brass, with smooth black, corrosion resistant finish, and with strong, spring closed, forked jaws. Clamps can be quickly attached. When pressure is released, the two parts are held securely by the spring."
Other Name Hand-operated adjustable clamp
Number of images 1
Updated 2017-02-16
Condition Very Good
NIH Property # none
Old NIH Property # none
Serial # none
People Schmid, Leopold J.